	Introduction

This report focuses on selected precision-guided munitions (PGMs) fielded by the Air Force, Army, Navy, and Marine Corps.. AGM-158A/B Joint Air-to-Surface Strike Missile (JASSM) and AGM-158C Long-Range Anti-Ship Missile (LRASM)

The Joint Air-to-Surface Strike Missile was conceived in the mid-1990s as a stealthy cruise missile designed to strike targets in heavily defended airspace.. AGM-88E Advanced Anti-Radiation Guided Missile (AARGM)

The Advanced Anti-Radiation Guided Missile is designed to target enemy integrated air defenses, specifically guidance radars (see Figure 15 ).. As a result, U.S. ships and aircraft would need to engage targets at long ranges in order to not put themselves in danger.. Background

DOD defines a PGM as "[a] guided weapon intended to destroy a point target and minimize collateral damage.". Current munitions typically use a combination of radio signals from the global positioning system (GPS), laser guidance, and inertial navigation systems (INS)âusing gyroscopesâto improve a weapon's accuracy to reportedly less than 3 meters (approximately 10 feet).. DOD has requested more than $1.2 billion for approximately 9,900 rockets in FY2020, and it plans to spend an additional $4.3 billion for nearly 29,000 GMLRS between FY2021 and FY2024.. DOD projects requesting approximately $3.3 billion for 20,456 weapons in FY2022, $3.9 billion for 23,306 weapons in FY2023, $3.9 billion for 18,376 weapons in FY2024, and $3.6 billion for 16,325 weapons in FY2025.. In FY2021, the Department of Defense (DOD) requested approximately $4.1 billion for more than 41,337 weapons in 15 munitions programs.. In addition to PGM use in current operations, the proliferation of anti-access/area denial (A2/AD) systems is likely to increase the operational utility of PGMs.. Laser-guided bombs gained prominence during Operation Desert Storm in 1991.. Many weapons in the U.S. inventory have relatively short ranges.. Nearly all of the weapons employed were PGMs, particularly Joint Direct Attack Munitions (JDAMs) and Hellfire Missiles.. Operations over the past decade in Afghanistan, Iraq, and Syria have demonstrated DOD's increasing reliance on PGMs and how important they have become for modern military operations.. Over the years, the U.S. military has relied on PGMs to execute ground, air, and naval military operations.. PGMs include air- and ship-launched missiles, multiple launched rockets, and guided bombs.. Potential issues for Congress include
planned procurement quantities and stockpile assessments, defense industrial base production capacity, development timelines, supply chain security, affordability and cost-effectiveness, and emerging factors that may affect PGM programs.. Precision Strike Missile (PrSM)

The PrSM is a new development program intended to replace ATACMS.
Over the years, the U.S. military has become reliant on precision-guided munitions (PGMs) to execute military operations. PGMs are used in ground, air, and naval operations. Defined by the Department of Defense (DOD) as "[a] guided weapon intended to destroy a point target and minimize collateral damage," PGMs can include air- and ship-launched missiles, multiple launched rockets, and guided bombs. These munitions typically use radio signals from the global positioning system (GPS), laser guidance, and inertial navigation systems (INS)âusing gyroscopesâto improve a weapon's accuracy to reportedly less than 3 meters (approximately 10 feet).
Precision munitions were introduced to military operations during World War II; however, they first demonstrated their utility operationally during the Vietnam War and gained prominence in Operation Desert Storm in 1991. Since the 1990s, due in part to their ability to minimize collateral damage, PGMs have become critical components in U.S. operations, particularly in Afghanistan, Iraq, and Syria. The proliferation of anti-access/area denial (A2/AD) systems is likely to increase the operational utility of PGMs. In particular, peer competitors like China and Russia have developed sophisticated air defenses and anti-ship missiles that increase the risk to U.S. forces entering and operating in these regions. Using advanced guidance systems, PGMs can be launched at long ranges to attack an enemy without risking U.S. forces. As a result, DOD has argued it requires longer range munitions to meet these new threats.
The Air Force, Army, Navy, and Marine Corps all use PGMs. In FY2021, the Department of Defense (DOD) requested approximately $4.1 billion for more than 41,337 weapons in 15 munitions programs. DOD projects requesting approximately $3.3 billion for 20,456 weapons in FY2022, $3.9 billion for 23,306 weapons in FY2023, $3.9 billion for 18,376 weapons in FY2024, and $3.6 billion for 16,325 weapons in FY2025. Previously DOD obligated $1.96 billion for 13,985 weapons in FY2015, $2.98 billion for 35,067 weapons in FY2016, $3.63 billion for 44,446 weapons in FY2017, $5.05 billion for 68,988 weapons in FY2018, and $4.3 billion in FY2019 for 60,62 munitions. In FY2020, Congress authorized $5.30 billion for 56,067 weapons.
Current PGM programs can be categorized as air-launched, ground-launched, or naval-launched.
Air-Launched: Paveway Laser Guided Bomb, Joint Direct Attack Munition (JDAM), Small Diameter Bomb, Small Diameter Bomb II, Hellfire Missile, Joint Air-to-Ground Missile, Joint Air-to-Surface Strike Missile (JASSM), Long Range Anti-Ship Missile (LRASM), and Advanced Anti-Radiation Guided Missile. Ground - Launched: Guided Multiple Launch Rocket System (GMLRS), Army Tactical Missile System (ATACMS), and Precision Strike Missile (PrSM); Naval PGMs: Tomahawk Cruise Missile, Standard Missile-6 (SM-6), and Naval Strike Missile.
Congress may consider several issues regarding PGMs, including
planned procurement quantities and stockpile assessments, defense industrial base production capacity, development timelines, supply chain security, affordability and cost-effectiveness, and emerging factors that may affect PGM programs.